Do big bodies make big brains? Let your learners decide whether there is an association between body weight and brain weight by putting the data from different animals into a scatterplot. They can remove any outliers and then make a line of best fit to show whether the relationship is positive or negative. Fortunately for us, human brains are heavy!

Concepts

relationships, correlation, line of best fit, outliers, scatter plots, graphs

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Additional Tags

scatterplot, outliers, correlation, relationships, line of best fit, math

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Pros

• Lesson uses dry spaghetti for line of best fit but any straight object will work
• Commentary provided, as well as solutions and scatterplot

Cons

• None

Common Core

8.SP.A.1 8.SP.A.2 MP2